Myelin sheaths in the CNS are formed by which of the following cells?
A. Schwann cells
B. Ependymal cells
C. Microglia
D. Astrocytes
E. Oligodendrocytes
Answer: E
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The respiratory center of the brain is located in the:
A. medulla. B. cerebrum. C. cerebellum. D. hypothalamus.
During auscultation of the lungs:
A) it is normal to hear the sliding of the parietal and visceral layers of pleura. B) it is normal to hear the movement of the pleural fluid. C) pleural rub sounds indicate pleuritis or pleurisy. D) pleural rub sounds indicate a loss of negative pressure in the pleural cavity. E) pleural rub sounds indicate pneumonia.
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Indicate whether the statement is true or false
A patient with a suppressed cough mechanism:
A) should be intubated at once. B) is at serious risk for aspiration. C) often requires ventilation support. D) will have a positive eyelash reflex